Two feedback configurations are shown in Figures P12.15 (a) and (b). At low input voltages, the two gains are \(A_{1}=A_{2}=90\) and at higher input voltages, the gains change to \(A_{1}=A_{2}=60\). Determine the change in closed-loop gain, \(A_{f}=V_{o} / V_{i}\), for the two feedback circuits. (See Figure 12.4.) Which feedback configuration will result in less distortion in the output signal?

Transcribed Image Text:

Figure P12.15 A -OV A B=0.1 (a) B=0.1 A Vo A1 B=0.0122 (b)